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Date: Fri, 2 Sep 2011 19:03:12 +0000 (UTC)
From: "Sebastian Bauer (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Commented] (HBASE-4301) META migration from 0.90 to trunk
 fails
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    [ https://issues.apache.org/jira/browse/HBASE-4301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13096213#comment-13096213 ] 

Sebastian Bauer commented on HBASE-4301:
----------------------------------------

unfortunately after clean upgrade from backup running before branch-0.90 to patched TRUNK i still cannot even scan .META. with ./hbase shell

with v2 patch i get this:

2011-09-02 20:49:30,473 INFO org.apache.hadoop.hbase.master.SplitLogManager: found 0 orphan tasks and 0 rescan nodes
2011-09-02 20:49:30,787 INFO org.apache.hadoop.hbase.master.MasterFileSystem: Creating HTableDescriptor for ROOT tables
2011-09-02 20:49:30,788 INFO org.apache.hadoop.hbase.util.FSUtils: Current tableInfoPath = hdfs://lala.golden:50001/hbase/-ROOT-/.tableinfo
2011-09-02 20:49:30,790 INFO org.apache.hadoop.hbase.util.FSUtils: TableInfoPath = hdfs://lala.golden:50001/hbase/-ROOT-/.tableinfo tmpPath = hdfs://lala.golden:50001/hbase/-ROOT-/.tmp/.tableinfo
2011-09-02 20:49:30,862 INFO org.apache.hadoop.hbase.util.FSUtils: TableDescriptor stored. TableInfoPath = hdfs://lala.golden:50001/hbase/-ROOT-/.tableinfo
2011-09-02 20:49:30,864 INFO org.apache.hadoop.hbase.master.MasterFileSystem: Creating HTableDescriptor for .META. tables
2011-09-02 20:49:30,865 INFO org.apache.hadoop.hbase.util.FSUtils: Current tableInfoPath = hdfs://lala.golden:50001/hbase/.META./.tableinfo
2011-09-02 20:49:30,866 INFO org.apache.hadoop.hbase.util.FSUtils: TableInfoPath = hdfs://lala.golden:50001/hbase/.META./.tableinfo tmpPath = hdfs://lala.golden:50001/hbase/.META./.tmp/.tableinfo
2011-09-02 20:49:30,877 INFO org.apache.hadoop.hbase.util.FSUtils: TableDescriptor stored. TableInfoPath = hdfs://lala.golden:50001/hbase/.META./.tableinfo

and later:

2011-09-02 20:50:40,374 INFO org.apache.hadoop.hbase.catalog.CatalogTracker: Passed metaserver is null
2011-09-02 20:50:40,405 INFO org.apache.hadoop.hbase.master.AssignmentManager: No previous transition plan was found (or we are ignoring an existing plan) for .META.,,1.1028785192 so generated a random one; hri=.META.,,1.1028785192, src=, dest=lala.golden,60020,1314989371098; 1 (online=1, exclude=null) available serve
rs
2011-09-02 20:50:40,405 INFO org.apache.hadoop.hbase.master.AssignmentManager: Assigning region .META.,,1.1028785192 to lala.golden,60020,1314989371098
2011-09-02 20:50:40,636 INFO org.apache.hadoop.hbase.master.handler.OpenedRegionHandler: Handling OPENED event for 1028785192; deleting unassigned node
2011-09-02 20:50:40,638 WARN org.apache.hadoop.hbase.master.AssignmentManager: Node deleted but still in RIT: .META.,,1.1028785192 state=OPEN, ts=1314989440635, server=lala.golden,60020,1314989371098
2011-09-02 20:50:40,638 INFO org.apache.hadoop.hbase.master.handler.OpenedRegionHandler: Opened region .META.,,1.1028785192 on lala.golden,60020,1314989371098
2011-09-02 20:50:40,639 INFO org.apache.hadoop.hbase.zookeeper.MetaNodeTracker: Detected completed assignment of META, notifying catalog tracker
2011-09-02 20:50:40,667 INFO org.apache.hadoop.hbase.master.HMaster: .META. assigned=2, rit=false, location=lala.golden,60020,1314989371098
2011-09-02 20:50:40,671 INFO org.apache.hadoop.hbase.master.HMaster: metaUpdated = NULL.
2011-09-02 20:50:40,671 INFO org.apache.hadoop.hbase.master.HMaster: Meta updated status = false
2011-09-02 20:50:40,672 INFO org.apache.hadoop.hbase.master.HMaster: Meta has HRI with HTDs. Updating meta now.
2011-09-02 20:50:40,720 INFO org.apache.hadoop.hbase.catalog.MetaEditor: Current INFO from scan results = REGION => {NAME => 'EXT_AC,,1295533530463.4e36610aa00b7e8743c1816b12c2e698.', STARTKEY => '', ENDKEY => '', ENCODED => 4e36610aa00b7e8743c1816b12c2e698, TABLE => {{NAME => 'EXT_AC', FAMILIES => [{NAME => 'c', BLOO
MFILTER => 'ROW', REPLICATION_SCOPE => '0', VERSIONS => '1', COMPRESSION => 'LZO', TTL => '-1', BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE => 'true'}]}}


> META migration from 0.90 to trunk fails
> ---------------------------------------
>
>                 Key: HBASE-4301
>                 URL: https://issues.apache.org/jira/browse/HBASE-4301
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.92.0
>            Reporter: Todd Lipcon
>            Assignee: Ted Yu
>            Priority: Blocker
>             Fix For: 0.92.0
>
>         Attachments: 4301.txt, 4301_v2.txt, master-log.txt
>
>
> I started a trunk cluster as an upgrade from 0.90.4ish, and now my META table is screwed. I can't scan it, etc, and other operations fail.

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